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MathGroup Archive 2003

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  • To: mathgroup at
  • Subject: [mg39303] Simplify[Abs[x],x<0]]
  • From: Uri Zwick <zwick at>
  • Date: Mon, 10 Feb 2003 01:07:48 -0500 (EST)
  • Sender: owner-wri-mathgroup at


Simplify[ Abs[x] , x>0 ] returns x.
But, Simplify[ Abs[x] , x<0] returns Abs[x], and not -x.

Why is that?


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